Skip to product information
1 of 1

R44 Performance

R44 Catless Downpipe For BMW S58 G8X M3 / M4

R44 Catless Downpipe For BMW S58 G8X M3 / M4

Regular price $943.99 USD
Regular price Sale price $943.99 USD
Sale Unavailable

We are proud to introduce our new R44 S58 Catless Downpipe for 2021 G80/G82 M3 & M4.  Reduce backpressure by eliminating the restrictive catalytic converter in the factory downpipe which results in a faster spool, an increase in power and a more aggressive exhaust note. Handcrafted from stainless steel and CNC precision-machined flanges constructed from billet 304-grade stainless steel. 


  • Made from hand-crafted, tig welded 304-grade stainless steel.
  • Smooth radius bends to decrease turbulence and increase flow.



  • Lighter weight than the factory system
  • Quicker turbo spool
  • Increased low end and mid-range power


  • BMW M3 (G80) (2021+) 3 Series S58
  • BMW M4 (G82)  (2021+) 4 Series S58
View full details